﻿Either there is no door type object associated, i.e. the <em>IsTypedBy</em> inverse relationship is not provided, or the associated type object has to be of type <em>IfcDoorType</em>.
<blockquote class="note">NOTEnbsp; The deprecated type <em>IfcDoorStyle</em> is still included for backward compatibility reasons.
  </blockquote>